src/system/libroot/posix/signal/sigaltstack.c

   1 /*
   2  * Copyright 2007, Axel Dörfler, axeld@pinc-software.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6
   7 #include <errno.h>
   8 #include <signal.h>
   9
  10 #include <errno_private.h>
  11 #include <syscalls.h>
  12
  13
  14 int
  15 sigaltstack(const stack_t *alternateStack, stack_t *oldAlternateStack)
  16 {
  17         status_t status =_kern_set_signal_stack(alternateStack, oldAlternateStack);
  18         if (status < B_OK) {
  19                 __set_errno(status);
  20                 return -1;
  21         }
  22
  23         return 0;
  24 }